Automatic stop motion



Dec.'6, l927.

A. J. GALLANT AUTOMATIC STOP MOTION Filed March 5. 1927 3 SheetsSheet l Dec. 6, 1927. 1,651,761

A. J. GALLANT AUTOMATIC STOP MOTION I 3 Sheets-Sheet 2 Filed March 5. 192'! N g Q Inventor Patented Dec. 6, 1927.

UNETE stare ALFRED JOHN GALLANT, or swannanoa, NORTH CAROLINA.

AUTOMATIC STOP MOTIONL 1 7 Application filed March 5,

.The'present invention relates to an imembodying a trip actuated switch control for a machine known to the trade as a' napper, but so 'netimes designated as raising machine for blankets and fiannels.

The purpose of the invention is to pro I vide' a dependable stop mechanism for automatically stopping the napping machine when the material running to the right or the left of its natural course or when two pieces of material are fastened together improperly ata seam, which it run through the machine in this condition, will cause serious;

damage to the machine.

The improved structure tomatic stop mechanism, together with the advantages derived from the special association of parts will. become. more readily apparent from the following detailed description and the accompanying drawings. In these drawings r f Figure I is a" side view of a napping ma-' chine showing the improvement associated therewith and indicating the approximate method of operation. 1 Fig. 2 is a topplan viewof the same. Fig. .3 is a detail view. of one of the end bars of the guide frames showing the switch actuating means. I 1

Fig. 4 is .a top plan viewof. the structure shown in Fig. 3.

the guide frame showing an adjustable stop device. i i l r Fig. 6 is a top plan view of Fig. 5.

Fig. .7 is an enlarged detail View of one of the material penetrating fingers equipped with a special guide plate.

Fig. 8 is a view of the same structure showing the configuration of the guide plate more plainly.

Fig. 9 is a front elevation of another part Referring now to the drawings in detail.

and especially to Fig. 1, it will be noticed .ner.

forming this auv 1927. Serial No. 173,079.

that the" reference, character '1 designate s proved automatic stop motion or mechanism blankets and flannel in .a well. known ma n This. machine embodies the customary supporting frame and f the napperroll 2 driven by means controlled from an electric switch 3. Mounted .on this'machine as well as on the outwardly extending beams 42 at located at customary suspension points.

ignated at 6 passes overthese rollers in-the the top v oi the machine are guide rollers 55,

direction of the arrow. The materialis piled on trucks 7 ,as ordinarily is the case, and

passes upwardly over the guide means '8. i Q

Under ordinary conditions, two trucks are located beneaththisv guiding means and'the material is'piled thereonfsothat it can-be 1 unfolded in the manner 'indicatech F orcon;

' 'venience the piles of material are designated" by the reference characters il.

In this connection, Ijmightdirect 'atten tion toa receiving truck 10 onwhichithe treated material 11 is piled. Itis. well toj consider the guidemeansf'8 more' in detailfl In the first place, it isto be stated that this guide means is of conventional construction f and comprises depending hangers 12 carry? 111g end bars 13' and 14between.which 'arethe customary transversely 'disposedguidefl rods 15. Fig. 5 isa view of the opposite end bar ot'i journaled at its opposite ends iii-bearings 7 formed in the intern'iediate portions of the bars 13 and 14. Fastened to the outside of the bar 18, isastop forming bracket ll" (see- Fig. withwhich an'adjustable stop screw I 18 cooperates. This screw is carried b'y a w collar 19which 'is fastened to thefadjacen't projecting ends otthe rock shaft. as indicated plainly in Fig. 6. Mounted onth'e corresponding portion "of the opposite-end of this rock shaftis'a crankarm '20 (see Fig.

'3), which engages a pivotally mounted arm one end ofthe arm 21."c'ooperates with a stop shoulder 22and' pull wire o'rfrod-23 is connected to the opposite end thereof. By observingFig. '1. it will be noticed that; this rod 28yis adjustable and includes a turn button on the switch 3.

buckle for this purpose and it extends to and connects with the details shown in igs. 9 and 10.

Directing attention to these figures, it will be seen that the reference character 24 designates a bracket fastened to the frame of the member adjacent the switch .3. A small shaft 25 is journaled in abearing on this bracket, and a presser finger26 is connected with this shaft, and cooperates with a push Also, an additional crank arm 27 connects with this shaft, and with the aforesaid rods 23. A spring 28 connects with the crank arm and with'the bracket 24, to normally move thev finger 26 away from the switch.- Obviously, however, when the 'rod 23' pulls against the tension of the spring, the shaft "25 is rotated to actuate the finger 26 which in .turn operates the switch to open the electric circuit and to stop the machine 1.

In order to produce the foregoing opera tion, I employ novel material controlled means mounted on the rock shaft 16. To begin with, I employ two duplicate trip and penetrating elements of the constructlon shown better in F igs. 7 and 8. Each element. is longitudinally curved and has a pointed end as indicated at 29 and is provided with a collar 30 fastened to the rock a shaft 16 by a set screw. These trips are 10- respectively.

These platesa'have theircurved edges dis posed lnwardly and'arra-nged in close proximity to the longitudinal edges of the moving material, 6.

It is obvious, therefore, that should the material run crooked, the edge will ride up on the curved edge of the plate 31 and at a predetermined time, the points 29 on the trip will penetrate the material and the tendency .of the material to move onwardly, will rock thev shaft to actuate the switch through the medium of the mechanism described. In ad .dition, to the trips 29, I employ supplemental penetrating elements and trips 33 as shown in Fig. 11. These are arranged on the intermediate portion of the rock shaft.

Closely associated with these trips 33, are

material lifters 34 (see Fig. 12).

Incidentally, the elements 33 and 34 are arranged in alternate order as represented in the top plan'view in Fig. 2, the points on the elements '33 being directed in a direction;

opposite to 1 the movementof the material, and the hooked upper end 35 of theelement 34 being directed in an opposite direction,

will be stopped in the event that improper seams occurring in the material or in the event that it moves crooked in the direction from right to left. v I I 7 Briefly, in the operation the material 6 travels in the direction of the arrows and is trained over the various rollers as shown.

Dueto improper placement of the trucks 7, the materials usually start to crowd to one side or the other, and move out of a proper course. In case this happens, the longitudinal' edge of the material strikes the guide plate 31 and works up on the curved edge thereof untilthe point 29 onthe penetrating trip pierces the material. This causes the rock shaft to oscillate, and to actuate the details 20 and 21 which in turn serve to operate the switch to stop the machine. As before indicated, the object of the intermediate cooperating trips 33 and 34 is to pierce any irregularity or sea-min the material and to stop the machine.

Of course, the operator has wired the seams together, so that the projecting loose ends are on the wrong side of the material or has left out either one or both seam wires, so that the seam is only half fastened, or

not fastened at all. Hence, as the material is drawn across the mechanism, the trips come into play for stoppingthe machine in order that the error may be corrected.

In connection with the foregoing, it will benoted that the parts 29' and 33 are two very important factors of the structure. The part 34 has 3a blunt end that points in thesame direction that the cloth is moving, and

it'holds the cloth to keep it from sliding down and engaging the parts 33. The last named part is provided with a point which catches on an improper seam and trips the mechanism and vautomaticallv stops the machine. A seam usually has a two-inchfiap on one side.

Naturally when the seam or flap is wrongit is underneath and hangs downin the path of movement of the part 33. If the seam is proper however, it overlaps "or rides on top and no harm can be done. It follows thatimproper seams providing hanging flaps which trip the parts 33, to automatically stop the machine for the purpose described.

It is believed that by cdnsidering the de scription inconnection withthe drawings, a. 3

clear understanding of the invention will be had by persons skilled in the art to which the invention relates. Therefore, a more lengthy description is thought unnecessary.

While the preferred embodiment of the invention has been shown and described, it is to be understood that minor changescommg within the field of invention claimed may be resorted to if desired.

Having thus described my invention, what I claim as new 1s 1. In a structure of the class described, in combination, a napping machine including a support provided with a napper roll, guide rollers, and guide means located in advance of the napper roll, together with an electric control switch, a rock shaft mounted on said guide means, material piercing and trip means carried bysaid rock shaft said trip means being normally out of contact with the movable material, and engageable with said material when caught by a. defective seam, and an operating connection between the rock shaft and switch, whereby when the I rock shaft is actuated. by the material and trip means, the switch will be turned off to automatically stop the machine.

'2. In a structure of the class described,

material guiding means for a standard napping machine embodying transverse guide bars and end bars a rock shaft mounted be tween the guide bars and in bearings 1n said end bars, trip mechanism mounted on said rock shaft said mechanism being operable by the action of the traveling cloth, and electric switch operating means associated with one end of the rock shaft, whereby when a defect occurs in the traveling cloth, said trip mechanism will be actuated to in turn by the action of the traveling cloth, and switch operating means associated with one end of the rock shaft, said switch operating means embodying a crank arm carried by said rock shaft, a pivotally mounted arm with which said crank arm is connected, an ad ustable operating rod. connected wlth said pivoted arm, and spring released means associated with said rod and adapted for association withthe switch for actuating.

the switch, whereby when a defect occurs in the traveling cloth, said trip mechanism will be actuated to in turn operate the switch and stop the machine.

4. In a. structure of the. class described, material guidlng means for a standard napping machine embodying transverse guide bars and end'bars, a rock shaft mounted be tween the guide bars and rockable in bear ings in said end bars, trip mechanism mounted on said rock shaft, said mechanism being 2 i operable by the action ofthe traveling cloth, switch operating means associated with one end of the rock shaft, said switch operating means embodying a crank arm carried by said rock shaft, a pivotally mounted arm with which said crank arm is connected, an adjustable operating rod connected with said pivoted arm, and spring released means associated with said rod and 'adapted for association with the switch for actuatingv the switch with which said rock shaft is equipped, together with guide plates carried by the end tripmembers, the guide plates having curvededges for cooperation with the longitudinal edges ofthe moving material, whereby when a defect occurs in the I traveling cloth, said trip mechanism will be actuated to in turn operate the switch" and. i

stop the machine. V v

o In testimony'whereof I alfixmy signature.

ALFRED JOHN GALLANT. 

